Spacing feed mechanism for work in punching, drilling, or like machines



I. PARIS. SPACING FEED MECHANISM FOR WORK IN PUNCHING, DRILLING, 0R LIKEMACHINES.

APPLICATION FILED DEC. I, I920.

Patented Nov. 14, 1922.

8 SHEEIS-SHEEI I.

W m @a w W7 2 3 a I. PARIS.

SPACING FEED MECHANISM FOR WORK IN PUNCHING, DRILLING, 0R LIKE MACHINES.

' APPLICATION FILED 0Ec.1. 1920.

8 SHEETS-SHEET Z.

flame 25% Paris f A iorneyr it Patented Nov. 14, 1922. a

' l aosnrnrna'rs or Nannies, sermon a v 1 srncrne FEED MECHANISM- roawear: in ronenrne, D BILLING, on VLrKnivrAo rNns.

Application filed. December 1, i920. seriairo. 421,524.;

T 0 011 2 whom it may concern Be itknown that L J osErH PARIS, a citizen of the Republic of France, and residing at Nantes (Loire ln rieureDepartment),

, Route de Roche Maurice, inthe Republicof France, engineer haveinvented certain new and useful Improvements in Spacing Feed Mechanismsfor Work in Punching, Drilling, or like Machines of which thefollowingis a specification.

This invention, relates to a, method and an apparatus permitting therapid centering of structural members and various rolled bars 1119.01 amachine tool employed for instance for drilling or: punching operations,whereby all previous marking of the pieces shall'be obviated. For thispurpose the pieces under operation are disposed in such manner as toslide between rollers whose position is closely adjustable withreference; to the axis of the tool, or in other cases such pieces arerigidly secured to structural bars" which are slidalole betweensaidrolle'rs,v

a line parallel to the edge of the piece,

.termed, marking line, and a series of lines situated at right anglestothe former and spaced according to determined dimensions.

In the process according to thisinven tionaniechanical means areemployed whereby the centre line and thesuccessivfe perpeir diciilarlines are caused to pass through the centre of the tool, wither 1trequiring such lines to be marked out in any way.

The bar 1, an angle iron for'instance, is u d y the fo ro ers 2,31 W ped in pairs, upon the two'platesfi and The shafts of said rollers, tand5 are'se' cured respectively to. the plates 6iand 17',

while the shafts of the rollers 2 and. 3 are mounted vupon the arms 8and9 adapted to swing about the shafts and 11 which are carried by themembers 12 and 13 secured to the plates 6 and 7, The said arms 8 and .9are drawn backwardly by the springs 14. and 15 in such manner that thebar 1 irrespectively of the thickness thereof shall always contact therollers 4. and 5. It results from this disposition that the back edgeofsaid bar can only move according to, the tangent of these two rollers.-I

The distance between the rollers 4 and 5v and they axis of the tool isadjusted;- once for allby moving theplates 6 and 7 upon the mainframe ofthe machine, and to permit of-thisadjnstment thevided with oval holessuch as 16.-having the a clamping bolts inserted therein. eration is;carried out-in such manner'that the distance (Z between the tangent to,the rollers-and the axis of the tool shall-be equal. to. the distance.between. the, holes, to benforrned andthe back edge of therbar 1. Underthese conditions, upon sliding said T bar between the rollers; thecentre line of plates. maybe prothe proposed holes will invariablycoincide i I 7 bar 1 should not be perfectly straight, no, 7 Theaccompanyingcdrawing shows by way of example variousconstructional formsof inconvenience will follow ithereiii'om inasmuch as thecustomary.trimmingoflthe bar .7

Will be sufiiolient to permit said bar to be considered as straight uponthe, distance bet tween the rollers, which can infactbe made r I v ryrt,

A-inyc possible errors in centering will fall within the limits of theprecision required for structural steelwork and thejlike. a v Thisheingaccomplished, when, it is desired to bringthe centre of a hole uponthe axisofthe tool, allthat is necessary is llQfiX with reference to thetool the point onthel I edge of the bar which islocated upon the samecross sectionas the said centre of the To this end a template, 1? issecured. wer

bar 1 f01 instance by small clamps,v

and a pointer 18 fis disposed upon 7 the ma- 1 chine frame in line withthetool. s

The template 17 carries a serieslof lines corresponding to thedi-stancebetween centres of the holes, the said linesbeing brought successivelyopposite the pointer. The. bar

is drawn along by rotatingoneof the rollers mounted. onafixed'fshaft 5,rorinsta'nce by. means of a hand wheel 19 said roller, being I providedfor drawing along the bar.

h p rat o ft e device s as The distance between the rollers I andthetool having beenadj ustedas above ,i0'5 i with a striated orflutedsurface' follows; i ra d-'5 mentioneditlie template. ruler 17 issecured at both ends thereof of. the said b ar,"the

workman operates the hand wheel 19 in such manner as to draw alongthe-piece and to bring marking lines successively opposite the pointer18; as each line comes into posicaused to bend under an effort which iseasily obtainable by a person acting upon the end. of said bar. Theclamps 22 are disposedupon the angle bar 1 at frequent 1uterval's, saidclamps being provided with the clamping screws 23 and the stop pieces 2%all of which are fitted with tempered steel points. The distance betweensaid points and the back edge of the angle bar is exactly the same forall the clamps.

The'sheet metal piece under operation is secured to the angle bar 1 bymeansot the said clamps. Along the edge of the sheet, metal piece ismarked out for instance by a chalked cord a straight line uponwhich arebrought the points of all the clamps, the latter being operated withsuflicient force to cause the said points to enter the sheet metal.- l lith the points thus ranged in line,

the rear side of the angle bar is now exactly in the straight position.The rollers 25 support the sheet metal piece 20 in such manner v as topermit of readily moving the latter.

The work on the piece is carried out in the same manner as in thepreceding case. The said template 1? 1s secured along the edge of theangle bar; the marking lines of said template are arrested successivelyopposite the fixed pointer 18, which permits of drilling r punchingseries, of holes disposed in a straight line and spaced in the samemanner as the lines on the template. r0 cause different parallel linesto pass in line with the tool for the purpose of forming various rows ofholes such as is usually carried out in sheet metal work, the entireassemblage of the guide rollers is carried upon a plate 28 movable ingrooves whichare situated perpendicular to the centre lines of the fixedrollers. The said plate is moved by a screw 29 actuated by a handwheel30, and the plate may be secured in any desired position by suitable setscrews. Upon the side-oi the plate 28 is disposed a pointer 31cooperating with a template 32 secured to the machine frame The template82 is preferably provided with diiierent colored lines corresponding tothe various rows of holes to, be formed. 7

The'method of operating is as follows:

The hand wheel 30 is actuated to bring the pointer 31 opposite the lineon the template 32 corresponding to the row of holes to be formed, forinstance a red line. The hand wheel 19 controlling the actuating rolleris then operated to bring the sheet metal piece under the tool at thesame time that the template 1'? is broughtopposite the pointer 1.8, andeach time that one of the red lines of said template comes into posi-,ion, the movement is stopped and the ma chine is put in operation. Itshould be remarked that the work can be carried out without requiringany previous trimming of the edges of the sheet metal piece.

Claims; i M

1. The combination, with a drilling or punching machine, of a guidingand centerdevice for the pieces under operation, comprising an angle barserving as a support for said pieces and longitudinally movable, thevertical portion thereof being downwardly directed, two finely flutedstationary Tone s serving as hearing members for the rear side of saidangle bar and also as means for moving the same, two movable rollersmounted upon swinging arms which. are drawn back or pressed against thesaid angle bar by springs, a template carrying lines corresponding tothe space between centres of the holes to be formed and secured to saidangle bar, a pointer disposed upon. the machine frame and cooperatingwith said lines of the template, two plates, carrying said fixed andmovable guiding rollers and provided with oval shaped holes, clampingbolts disposed in said holes and secured to the machine frame permittingthe move ment or said plates for adjusting the dis tance between saidrollers and the axis of the tool, and hand wheel mounted upon, the shaftof the fixed rollers and adapted for the hand operation of said rollers.

2. The combination, with i a drilling or punching machine, or a spacingfeed mechanism, comprising an angle bar serving as a lbs support forsaid pieces and longitudinally.

movable, clamps secured to said angle bar at frequent intervals,clamping screws dis posed at the npper'partof said clamps, stop pieces,said clamps serving as means for securing material to beoperated 'uponto said angle bar, and rollers situated below the piece under operation"for the purpose of supporting the same.

3. The combination, with, a drilling inachine, of a spacing feedmechanism, comprising an angle bar serving as a support for said piecesand longitudinally movable,guiding rollers for said angle bar, a movableplate supporting the said guiding rollers and mov able indirection-perpendicular to the centre line of the fixed rollers, a screwfor moving tie saidplate, a hand wheel secured to said screw for thehand operation thereof, a pointer disposed upon the side of said plate,

and atemplate secured to the machine frame for indicating the movementof said plate] 4. The combination, with a drilling or punching machine,of a spacing feed mechanism, comprising a longitudinally movable anglebar, two uxtaposed guiding rollers,

one of said rollers being slidable with easy :t'riction upon the hub ofthe second,'a, llOll Zontal shait' situatedperpendicular to thedirection of longitudinal movement oi saidangle bar and carrying thesaid guiding rollers, two rollers supporting said shaft,

' which latter is caused to bear upon the sharp edges of triangulargrooves, rods for main taining said. supporting rollers in spaced reateach end, a template disposed uponsaid bar, jaws engaging the recessesat the sides; of the angle bar, an adjustment screw dis posed upon eachof said jaws for enp'aging the recesses at the ends of the bar wherebysaid template shall be -maintained' in place.

6. The combination with a. drilling or punching machine, of a spacingfeed mechanism comprising guiding means, elements guided by the saidguiding means and adapt-' ed to support the pieces of work, clampingelementshaving screws with tempered points and adapted to beattached'onthe one hand to the piece of work according to straight linedrawn in advance and on the other hand to the said guidedelements,,thelatter being constituted by an angle iron member mov-:tuted by a ledge carrying lines being spaced ,in a suitablemaniier,;fixing means adapted to maintain the said template upon thesaid able lengthwise whereof the vertical flange is downwardlyextending, the guioiug being constituted by two fixed rollers with fineflirting, serving as a support for the baclt of the said angle ironmember and as a displacing means and by two movable rollers which arecaused tobear upon the saidangle iron member by springs, a templateprovided with marking lines corresponding to the distance between thecenters of the holes to be drilled and secured to the angle iron member,a pointer secured to the machine frame and eo-operatmg with lillellllGSof the template, two plates carrying the said fixed and movable guidingrollers and having oval-shaped holes. formed therein, attaching pointerbefore which bolts passing through the said holes and secured to-themaeliinetrame, providing for the movement ioi the. saidplates in'lorderfto ees the m lbetweel the said} I rollers and the. axis of {the tool,and a hand wheel secured the aXle ofjtheiiized rollers for theyl andcontrol of the same.

I 7;The combination with a drilling-or; ,v punching machine, of spacingfeed mach aiiism' comprising guiding means, elements guided-by the saidguiding means and adapt: ed-to support the 1316068 ofwork, clampingelements having screws with tempered pointsand adapted to be attached onthe one harm, to thepiece cit-work accordingto astraight. line drawn inadvanceandonthe other hand to the said guidedelements, a template pro-'vided with marked lines corresponding to th distance between thecenters or" the holesto be drilled and secured to the guided ele ments,a, pointer secured to the .inachine frame and co-operating withthewlinesof the template, twoplatescarrying the said guiding means, and meanstorjchanging the distance between the guiding means and the tooloi? thedrilling or punching machine; I 8'. The combination Wltll a drilling ormeans for said angle bar, "a template conspa'ced in a suitablemanner,fixing means angle bar in removable manner and a fixed bedisplaced. 'j

means for said anglebar, a template constianp'le, bar in a removablemanner, rotarv sov punching machine, of an angle bar, guiding stitutedledge carrying lines being adapted to secure, said template upon saidfithe said templatewill i drivingmeans acting upon {the said angle bar inorder to displace the same and aifixed v ointer belorewhich the saidtemplate will bedisplaced,

In testimony, that presence of two subscribing witnesses.

- lVitnesses:

I claim the foregoing as u my invention I llZtVQQSlgDBCl my name inJOSEPH PABISI v,

